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(No Model.)

W. H. FULLER.

FLY SHUTTBR POR PHOTOGRAPHIG CAMERAS. No. 392,194. Patented Nov. 6, 1888.

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4UNITED STATES PATnr Oriana.

VILLARD H. FULLER, OF PASSATO, NEX/V JERSEY, ASSIGNOR TO' THE SCO- YILL MANUFACTURING COMPANY, OF NEW YORK, N. Y.

FLY-SHUTTER FOR PHOTOGRAPt-il@ CAMRAS.

SPECIFICATION forming part of Letters Patent No. 392,194, dated November 6, 1888. Application filed June 6, 1888. Serial No. 276,181. (No model.)

To @ZZ whom, 25 may concern:

Be it known that I, WILLARD H. FULLER, of Passaic, in the county of Passaic and State of New Jersey, have invented a certain new 5 and useful Improvement in Fly-Shutters for Photographic Cameras,of which the following is a specification.

My improvement consists in novel means for controlling the rapidity with which the ily- Io shutters shall operate.

I will describe a fly-shutter embodying my improvement in detail and then point out the novel features in claims.

The accompanying drawing is a front eleva- I5 tion oi" a iy-shutter embodying my improvement and its coacting parts.

'A designates the lyshutter, shown in dotted outline, arranged upon the rear side of a slide or board, B. The shutter is rigidly 2o mounted upon an axle, a, extending about centrally through the board B. Rigidly mounted upon the axle a are pulleys u a?. The pulley a is at the rear of the shutter. The pulley a? is in front of the board B. These pulleys are peripherically grooved. Connected to the pulley a is a cord, a. This cord passes downwardly and about a pulley, at, into a position where it may be grasped. When grasped and drawn downwardly, it operates to cause 3o the rotation of the shutter into a position to set the shutter. Vhen in such position, the shutter is retained by a spring-actuated pushpiece, O, engaging a notch in the periphery of the shutter. Vhen thus secured and the cord a is released, the latter is returned to a normal position by a spring, ai. The mechanism thus far described does not constitute, broadly, part of my invention.

Vound about and secured to the pulley a2 4o is a cord, a. This cord is secured at its other end to an arin or projection, d, on a brakewheel, D. This brake-wheel is mounted on a screw or stud,d, secured in the board B. The arm or projection d bears near its free end a pin orprojectionglg. Against this pin or projection bears one end of a spring, d3, which spring is, as shown, iirst coiled about a screw, di and then about ascrew, di. The tendency of this spring is to force the arm d downwardly.

5o When the cord a is operated to rotate the shutter in the direction to set the shutter, the pulley a? is also rotated to wind up the cord as, and consequently to raise the arm d on the brake wheel against the resistance of the spring d3. When the push-piece O is operated 5 5 to release the shutter, the spring d, by its operation on the arm d, causes a rotation of the shutter, through the medium of the cord as, in a direction to cause one o1' certain openings a in the shutter to pass an opening, a, in the board B, thereby occasioning an exposure.

J designates a brake for thebrake-wheel D. This brake, as shown, consists of a flattened piece of metal curved to coliform approximately to the arc of the brake-wheel. The lattened piece of metal has, as shown, secured to or made integral with it a flattened piece oi' metal, j, bent at approximate right angles thereto, by which the brake may be secured to the board B. The 'free end of the brake has a portion, j?, extending away from the brakewheel.

J designates an adjusting device i'or the brake, here shown as a screw. This screw has a bearing in a tapped holol in a bearing-piece, j", secured to the board B. The inner end of the screw J bears against the portion y* of the brake. The latter is resilient, its tendency being to move away from the bral e-wheel. By manipulating the adj ustingscrew J,therefore, the brake may be made to bind more or less tightly against the brake-wheel, whereby the rapidity with which the spring d will act upon the arm d of the brake-wheel may be 85 varied so as to cause a more or less rapid rotation of the shutter, as desired.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

l. The combination, with a ily-shutter, of a brake-wheel, a connection between the shutter and the brake-wheel, a spring acting on the brake-wheel for causing the movement of the shutter in one direction, a brake for the brake-wheel, and an adjusting device for the brake, substantially as specified.

2. The combination, with a iiyshutter, of a shalt upon which the shutter is mounted, a pulley on the shaft, a brake-wheel, a connection between the pulley and the brake-wheel for causing the movement of the shutter in one direction, a brake for the brake-wheel, and an adjusting device for the brake, substantially as specified.

lVILLARl') II. FULLER.

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lVitncsses:

J os. Bannon', HENRY i?. Sen, Jr. 

